Oil burner



May 29,7923.

A. G. MATHER OIL BURNER Filed March 7, 1922 2 Sheets-Sheet l m m T mm mm N J m May 29, 1923.

A. G. MATHER OIL BURNER Filed March 7, 1922 2 Sheets-Sheet MN Q Q 7 are to "provide economically constructed and 'linanmd May 192a UNI ED stars,

1,456,899 PATENT QFFME."

ALLAN- GILHOUR MATHER, 0F OTTAWA, ONTARIO, CANADA, ASSIGNOR OF ONE-Hm T0 ALBERT EDWARD BEADBURY, OF OTTAWA, ONTARIO, CANADA.

' 01L BURNER.

Application flled larch 7,

To it ma 1 concern: Be .it known t at I, ALLAN GILMOUR MA'r'rrnn, asubject of the King of Great Britain and a resident of the city of Ottawa, in the rovince of Ontario and Dominion of Canada, have invented certain new and useful Improvements in Oil Burners, of which the following is a specification..

Thisinventionrelates to improvements in oil burners, and the objects of the invention or smoke, that is readily controlled to give eflicient means for utilizing liquid fuel in perfect combustion to the limit of the air prising a hollow member formed with an orifice in the bottom for a pilot light and designed at the top to receive therein a suitably apertured and interchangeable covering plate or top.

Referring to the drawings in which like characters of reference indicate corresponding parts in each figure and in which:

Figure 1 is a side elevation partly in sec tionlshowing my invenion fitted, to a furnace. 9

Figure 2 is atop plan view of Figure 1.

Figure 3 is a plan view of the modified form of burner, showing divided 'air. conduits Figure 4 Figure 5 is an enlarged sectional view. of the diaphragm.

In the drawings: v I

In, which A represents a furnace part1 cutaway; of any standard make used for eatis a' sectional :view Figure 1922. $eria1 No. 541,710.

ing buildings and comprising grate bars 13 and a fire box C.

10 is a pan designed to rest on the grate bars B to catch any oil that may drip from the burner so that on the burner being ignited-such drip will also be. burned and the fire box maintained in clean condition, and 11 is the oil burner set on said pan at 12 and comprising a hollow, circular shaped member 13 provided with an inwardly slantin or concave rim 14 designed to engage wit the covering plate or top 15 having an aperture 16 therein. 17 is an opening in the'side of the member 13 communicating with an air conduit 32 hereinafter more fully described. 18 is a'pilot light of suitable construction arranged in the burner 11 connected by a gas conduit 19 extending therethrough and outside the furnace to the source of supply and provided with suitable valvemeans 20. 21 is the oil conduit designed at one end to extend through the side of the burner 11 adjacent to the air conduit 17 and formed with a reduced bore or discharge head 22 designed to discharge the oil or liquid intothe burner 11. Adjacent to the contracted discharge 0 ening 22 and at 4 than the bore in the discharge nozzle 22.

This construction is an essential and most important feature of my invention and assures aneven flow of oil or liquid without causing an, uneven flame in the burner. The other end of this conduit 21 is connected to a pressure pump 23 of any well known type and designed as here shown to be operated by a motor 24 throu h shaft 24 suitably mounted adj acent to t e furnace B and connects to the source of power by wires 25 having a switch control 26 and in turn connected to a thermostat 27. The flow of oil from the supply tank to the ump 23 and thence to the burner 11 throng the conduit 21 is controlled by means of the oil control i valve 28, a uniform level of oil being automatically maintained in a reservoir 29 connected to the supply tank and the pump respectively and havlng therein a strainer 30 and a float operated valve 31. 32, as reconnected tangentially at one end with the burner- 11 and having at the other end a fan viou'sly referred to, is the air blast con uit' From the foregoing details of construction the operation of my device will be almost self evident. The approximate amount of heat required having been determined upon, a plate apertured accordingly is dropped into the burner 11. The, controls 28 and 34 in the oil and air conduits respectively are then set, pilot light 18 lit and the power turned on through the switch 26 when the motor 24 starts operating the pump and fan to forc the oil and air through the conduits 21 and 32 into the burner 11, the former through the pilot light 18 being immediately ignited and circulating in flames around the inside of the burner 11 and out through the orifice 16 to constitute in the central flame through the orifice 16 one complete and perfect flame controlled as previousl mentioned for all practical purposes by the valve 28.

To put the burner out altogether, it is only necessary to open the switch when the burner I ceases to operate leaving all the adjustments set ready to start when the switch is again closed.

It will, accordingly be seen that the construction and operation of my device is not only thoroughly eflicient, but is at the-same "time practically fool proof. There are no complicated parts to get out of order and. the plate 15 being one of an interchangeable series having various sized orifices therein, may

be' changed at once to suit requirements.-

Moreover, in view of its compact arrangement, the machine can be readily disconnected and removed from the furnace at any time without interfering in any way with the. furnace in which it has been fitted. Similarly, while here shown as fitted to an ordinary central heating house furnace, In device can with equally satisfactory resu ts be fitted to any make of furnace, boiler or otherwise, The advgantages obtained not only from an economical pointof view, but also from that of safety, absence of dirt and odors, can not be adequately a preciated out;

side of a practical working 0 the invention.

The device is here shown and dealt with in its application to domestic heating purposes, but it may also be used with thegreatest advantage commercially on 'a much larger scale with, for instance, one fan "to a number of burners with a, separate motor for ,the'

pump etc. giving, however, in both cases perfect combustion free from backfire and soot, the backfire and explosions being ;entirely eliminated through the construction of the oil supplyc'ondui't and automatic shutter in the air supply, the features'ofiwhich are the provision of a perforated diaphragm.

is divided or split within the burner tangentially in opposite directions bymeans of a diaphragm centrally arranged in the a r conduit, thereby tending to considerably decrease noise when the device is in operation.

As many changes could be made in the above .construction and many widelydifl'erent embodiments of my invention within the scope of the claims, constructed without departing from the spirit or scope thereof, it is intended that all matter contained in the accompanying specification and drawings shall be interpreted as illustrative and not in a limiting sense.

' What I claim as my invention is:

1. An oil burner comprising an annular liquid fuel burning combustion chamber adapted to be readily inserted into and withdrawn from a fire-box, said chamber being designed to receive'an interchangeable top or cover plate havin an opening therein, openings in the circu ar wall of said chamber communication with air blast oil-supplying means,

2-. In combination, a heating device including a fire-box, a liquid fuel burnin com bustion chamber mounted in said lire-box and independent thereof, an interchangeable top or cover for the chamber having an open ing therein, said chamber being formed with bulged circular side walls and having a con-. caved top rim adapted to receive said cover, openings in the said .wallscommunicating with air and liquid fuel supply means for the chamber,'wh'ereby, in combination with the bulged sidewalls and rimmed top, a strata of oil-charged air is formed in the chamber preparatory to complete combustion. 1

3. An oil burner of the character described comprising a furnace grate, a burner des gned to fit thereon in a suitable tray,'an interchangeable cover plate for the burner, an' aperture in said cover plate, oil supply means for the, burner comprising a reservoir connected with the source of supply and provided with a screen and a float controlled valve, a pump communicating with said reservoir, valve control, an oil conduit communicating with the pum and the burner, a diaphragm in the con uit having .a smaller opening thanthe hole in the 'delivery end whereby an even flow of oil ison having interchangeable and aperture'd' covers or tops, an oil supply conduit having a' perforated diaphragm therein and I formed with a contracted discharge nozzle for said burner, blast means for the burner comprising a conduit communicating at one end with the burner and provided with. a

' bination a furnace grate, a burner thereon having an interchangeable apertured top, a pilot light in the burner, oil and air supply conduits communicating with the burner, control valves for regulating the supply of oil and air in said conduits, a perforated diaphragm in the oil conduit designed in combination with the contracted nozzle on the conduit to provide an even flow of oil for the burner, a pump for the oil conduit, a fan for the air, conduit, a motor designed to operate. the" pump and the fan andmeans connected with the source ofpower for operating said motor, a reservoir connected to the oil supply source de signed to supply said pump.

6. In a device of the character described the combination with a burner having an interchangeable apertured top or cover of an oil supply conduit provided with a perforated diaphragm and a contracted nozzle and an air blast conduit with shutter control means, a pressure pum communicatlng V with the oilsupply conduit, a fan for the air blast conduit and means connected to the source of power for operating the pump and said fan, a reservoir communicating with the source of supply and with said pump and valve control means in the vreservoir and for the pump.

.7. In an oil burner for furnaces, boilers and the like, a burner provided with an interchangeable and apertured top or cover,

ignition means within the burner, a perforated diaphragm, conduit means having a contracted nozzle for delivering oil to said burner, an air blast conduit communicating with the burner and provided with a control valve, pressure means for supplying oil and air to the conduits and means connected to the source of power for operatin said pressure means, ignition means in said burner.

.8. A crude oil burner of the character described comprising in combination a burner having an interchangeable apertured top or cover plate, an oil conduit, a perforated diaphragm therein, contracting means at the point of discharge in said con duit, a split air conduit designed to com municate tangentially with said burner, mearis for supplying and regulating the oil and air under pressure through said conduits to the burner, means for operating said supplying means and ignition means in the burner.

9. A crude oil burner of the character described comprising in combination a burner having an interchangeable apertured top or cover plate, an oil conduit, a perforated diaphragm therein, contracting means at' the point of discharge in said conduit, adivided air conduit designed to communicate tangentially with said burner, whereby noise is eliminated therefrom, means for supplying and regulating the oil and air under pressurethrough said conduits to the burner, means for operating in the burner.

10. A crude oil burner of the character described comprising in combination a burner having an interchangeable apertured topor cover plate, an oil conduit, a perforated diaphragm therein, contracting means at the point of discharge in said conduit,

air conduits designed to communicate tangentially with said burner, means for obviating the noise in'the burner, means for supplying and regulating the oil and air under pressure through said conduits to the burner, means for operating said supplying means and ignitionmeans in the burner. f

In witness whereof I have hereunto set my hand in the presence of a witness.

ALLAN GILMOUR MA'I HER.

Witness: v

H. T. Curr LEWIS 80 said supplying means and ignition means 

